Find ddx[x5−2x2+1]\frac{d}{dx} [x^5 - 2x^2 + 1]dxd[x5−2x2+1].
5x4−2x5x^4 - 2x5x4−2x
5x4−4x5x^4 - 4x5x4−4x
5x4−4x+15x^4 - 4x + 15x4−4x+1
x4−xx^4 - xx4−x